2 years ago

How do i find the value of a variable?

Mathematics

1 answer:

photoshop1234 [79]2 years ago

5 0

To find the value of a variable you must know the basics of pre-Algebra.

Example:

2x+9=39

To find he answer of this you must subtract 9 from both sides

Then you are left with…

2x=30

Since 2x=30 means 2 times x equals 30

You can divide 2 from both sides to find the answer

Which is…

x=15

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